Octal Addition
This calculator helps you add octal numbers, including fractional and negative values and displays the result in both octal and decimal formats.
The octal number system, known as base-8, uses digits from 0 to 7. Each digit in an octal number represents a power of 8, making it a compact way to represent binary values commonly used in computing.
Octal Addition Calculator
Calculator
- enter your first octal number in the "First Octal" field. You can include fractions (e.g., 0.44) and negative values (e.g., -12)
- enter your second octal number
Results
- the sum of the two numbers displayed in octal format
- the sum in decimal format
Example Addition
Add the octals 1238 and 5278 together:1 2 3 + 5 2 7 ------ 6 5 2
Here's how we get the result:
In the rightmost column, 3 + 7 = 10. But since we're in base-8, 10 becomes 2, and we carry 1 to the next column.In the middle column, 2 + 2 + 1 (carried) = 5. In the leftmost column, 1 + 5 = 6.
So, in octal 1238 + 5278 = 6528.Note; if the sum in any column is 8 or more, you will carry the value to the next column, just like you would carry in decimal addition if the sum is 10 or more.